22042019 has 2 divisors, whose sum is σ = 22042020. Its totient is φ = 22042018.

The previous prime is 22042003. The next prime is 22042037. The reversal of 22042019 is 91024022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22042019 - 2⁴ = 22042003 is a prime.

It is a super-2 number, since 2×22042019² = 971701203192722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22042049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11021009 + 11021010.

It is an arithmetic number, because the mean of its divisors is an integer number (11021010).

Almost surely, 2^22042019 is an apocalyptic number.

22042019 is a deficient number, since it is larger than the sum of its proper divisors (1).

22042019 is an equidigital number, since it uses as much as digits as its factorization.

22042019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 22042019 is about 4694.8928635273. The cubic root of 22042019 is about 280.3822118707.

The spelling of 22042019 in words is "twenty-two million, forty-two thousand, nineteen".